The Quick Read: An expense ratio is the share of your business-account deposits that a lender subtracts as operating cost before it counts the rest as income. For a self-employed landlord, the result depends on how rent reaches the account and what proof you can document. The ratio is a lender setting, not a law, and it sits beside separate tests on equity, credit, and title.
- A common default is 50% of deposits, and a documented lower ratio can raise your qualifying income.
- Rent deposits do not fit neatly into the formula, so treatment varies by lender and by account type.
- Qualifying income feeds a debt-to-income test run on the full line, not just the amount you draw.
- On an investment property, the network’s home equity line tops out at 70% CLTV and $500,000, no matter how strong the deposits look.
Key Terms Defined
Expense ratio (also called expense factor): the percentage of deposits a lender treats as the cost of running the business, so it does not count as income.
Qualifying income: the monthly figure the lender uses after it removes ineligible deposits, applies your ownership share, and subtracts the expense ratio.
Debt-to-income (DTI): your monthly debt payments divided by your qualifying monthly income.
CLTV (combined loan-to-value): all loans on the property, including the new line, divided by the property’s value.
Commingling: mixing personal, rental, and business money in one account.
P&L: a profit-and-loss statement, which lists a business’s revenue and costs over a set period.
DSCR (debt service coverage ratio): a property’s rent divided by its monthly housing payment. DSCR loans read the property’s income instead of yours.
PITIA: principal, interest, taxes, insurance, and association dues. This is the full housing payment.
How large a line the equity supports.
An equity line is sized by combined loan-to-value, occupancy, and credit — not by rental coverage. Switch the occupancy or the credit band and the ceiling moves with it.
Investment-property lines require a 700 minimum credit score; second-home lines start at a 640 minimum and primary-residence lines at 600, and the combined-LTV ceiling steps down as the credit band drops on primary-residence and second-home lines and holds on investment-property lines; the line cap steps down on primary-residence lines and holds at every tier on investment-property and second-home lines.
A debt-to-income ratio above 45% requires 680+ credit. Profiles under 640 are limited to single-family homes. At least 75% of the approved line is drawn at closing. Ceilings, floors, and caps update from Lendmire’s centralized guideline source.
Line estimate
Illustrative estimate only — not a quote, Loan Estimate, approval, or commitment to lend. The rate is an editable assumption; equity-line pricing is variable through both the draw and repayment periods and never converts to fixed. Occupancy and credit drive the ceiling together: an investment property tops out at 70% combined LTV (minimum credit 700, line cap $500,000); a second home tops out at 90% combined LTV (minimum credit 640, line cap $500,000), with the ceiling stepping down as the credit band drops (the cap holds at every tier); a primary residence tops out at 90% combined LTV (minimum credit 600), and its $750,000 maximum line is available only at 75% combined LTV or below with a 700-or-better credit profile (720 on the longer-runway program) and a full appraisal. Lines above $500,000 require a full appraisal. Credit, debt-to-income, property type, and full underwriting review all affect the final line.
How the Ratio Turns Deposits Into Income
A lender converts deposits to income in a handful of steps. Each one can shrink or protect the number you end up with.
1. Choose the window. Programs commonly ask for 12 to 24 months of statements, as HousingWire’s non-QM guide describes.
2. Scrub the deposits. Transfers between your own accounts, loan proceeds, and refunds come out. What remains are eligible deposits.
3. Apply your ownership share. If you own the business or account jointly, only your portion counts.
4. Apply the expense ratio. The lender multiplies by one minus the ratio. Scotsman Guide’s non-QM overview uses 50% as the standard example and notes a third-party P&L as an alternative.
5. Divide by the months in the window. The result is your monthly qualifying income, which then goes into the DTI test.
Why use a haircut at all? Traditional personal-income documentation understates what self-employed people can really spend, because legal deductions like depreciation, payroll, and equipment reduce the figure on the return, as HousingWire explains. Bank statements show cash flow instead. The trade-off is that deposits are gross revenue, so the lender backs out an assumed cost of earning them.
Across the wholesale network, the 50% figure is a common default, not a regulation. Some lenders accept a lower documented ratio. Programs that cap the ratio at a fixed 50% are often priced differently, and guidelines differ by lender.
A worked example, in index units
Treat these as modeled numbers, not dollars. Say your screened monthly deposits equal 100 index units.
- At a 50% default ratio, qualifying income is 50.
- At a documented 25% ratio, qualifying income is 75.
Now add debt. Suppose your existing monthly obligations, including mortgages on other rentals, total 12 units. The new line’s interest-only payment on the full limit adds 10. Total debt is 22.
- At 50 units of income, DTI is 44%.
- At 75 units of income, DTI is about 29%.
Same deposits, same debt, very different results. That is why the ratio is the biggest income lever in the file.
Why Landlords Get a Different Problem
Most expense-ratio guidance was written for operating businesses such as restaurants, contractors, and consultants. A landlord’s deposits are rent, and the costs behind that rent fall into different buckets.
No agency sets an expense ratio for non-QM lending, and published factors describe operating businesses rather than rental deposits. So treatment varies. Rent that lands in a business or LLC account may be treated like business revenue. Rent that lands in a personal account may be read differently. Ask the lender how rent deposits are handled before you pay for any letter.
Here is how the main landlord costs usually sort out. Details vary by lender.
| Landlord cost | Typical treatment |
|---|---|
| Repairs, management, vacancy | Folded into the expense ratio |
| Mortgage payments on rentals | Counted as debt in DTI |
| Taxes and insurance on rentals | Counted in the property’s housing payment |
| Depreciation | Not a cash cost; it shrinks tax-return income |
| Large one-time repairs | Not separately credited |
The main risk is double-counting. If the ratio already approximates operating cost, then the mortgage payments on your rentals still appear in DTI as debt. Both hits can land on the same file. A thin-margin portfolio with several mortgages can look weak on a bank statement even when each property pays for itself.
Which Account to Submit
The account you submit changes how the lender reads the money. Here is the practical breakdown.
| Account type | How lenders often read it |
|---|---|
| Business account | Expense ratio applies |
| Personal account | Often treated as already after-expense |
| LLC account | Business revenue, but the LLC cannot hold title |
| Commingled account | Many lenders decline it; some accept it |
Personal statements can look attractive because no haircut may apply. The catch is that personal accounts also hold salary transfers, reimbursements, and gifts, and those get scrubbed out. A clean business account with a documented ratio often reads better than a messy personal account.
Title matters too. On the network’s home equity line, the individual borrower or a revocable living trust must hold title. An LLC, corporation, or partnership cannot. If your rental is already deeded to an LLC, it needs a vesting change before a HELOC works, or a DSCR cash-out refinance may fit better, subject to program terms.
Lowering the Ratio (and When It Backfires)
A lower ratio needs proof. Scotsman Guide describes a letter from a CPA, enrolled agent, or other licensed tax preparer, or a P&L prepared by a third-party professional. The federal ability-to-repay rule text in the Federal Register says self-employment counts as employment and gives an example of a P&L prepared by the borrower and reviewed by a third-party accountant. A reviewer who is a spouse and not an accountant does not count.
The letter has to match your deposits and your tax-return story. If it does not, the lender falls back to the default. A letter is not automatic, and it is not free.
Landlords should also ask whether a lower ratio helps at all. A rental business with heavy repairs, management fees, and turnover may have a true cost ratio near or above the default. Certifying it could lower your income.
A three-step break-even self-test
1. Add up twelve months of rent deposits into the account you plan to submit.
2. Add up the operating costs paid from the same account: repairs, management, supplies, and similar items. Leave out mortgage payments, since those count as debt separately.
3. Divide costs by deposits. If the answer is well under the lender’s default, a letter may help. If it is close or above, skip the expense.
This is a rough estimate. Your preparer sets the number that goes on paper.
Deposit Hygiene for Rental Accounts
Clean deposits protect your income figure. A few habits help:
- Keep security deposits separate. They belong to the tenant and are not income.
- Label prepaid rent. One lump payment can make a month look unusually strong, and the lender may normalize it.
- Document transfers between properties. Moving money among your own accounts is scrubbed out, so keep a paper trail.
- Explain one-offs. A large sale proceeds deposit or insurance payout should come with a short note.
- Watch for declines. Falling deposits can raise questions, and so can overdrafts or returned-item fees.
- Match leases to deposits. Underwriters often compare your leases to what actually arrives.
Short-term rentals add another wrinkle. Platform payouts usually arrive net of fees and in lumps, which makes the monthly pattern uneven. Short-term rental rules can vary by city, county, HOA, and property type, so investors should confirm local rules before relying on projected rental income.
What the Network’s Investment Line Actually Allows
Bank statements change how income is documented. They do not change the equity or leverage limits. Here are the network’s investment-property HELOC parameters, all subject to lender guidelines and full file review.
- Leverage: 70% CLTV on an investment property. Credit above the minimum buys eligibility, not extra leverage.
- Line size: up to $500,000 on an investment property.
- Credit: a 700 minimum for investment lines. Business bank accounts need 680 for deposit analysis, so on an investment line, the credit floor always binds first.
- DTI: 50% maximum, qualified on the interest-only payment calculated on the maximum draw.
- Structure: a standalone line in first or second lien position, with a 5-year draw and a 25-year repayment. At least 75% of the line is drawn at closing.
- Valuation: lines of $500,000 or less ordinarily use an automated valuation, though a borrower may request a full appraisal.
- Property: single-family, 2-4 units, PUDs, townhomes, and condominiums. Manufactured homes, log homes, and commercial properties are not offered.
- Exposure: up to three lines per borrower, and a borrower with more than 15 financed properties is not eligible.
- Availability: the HELOC side is offered only in Lendmire’s 16 full-service states, narrower than its 41-market DSCR footprint, which includes Washington, D.C.
Lendmire is a broker and arranges these lines through select wholesale partners. It does not lend. Pricing and approval come from the lender.
One practitioner note: files that go wrong on this product rarely fail on the ratio alone. They stall because the account is commingled, the property sits in an LLC, or the DTI was never run on the full line limit. Running those checks first saves wasted letters.
When Expense Ratios Are the Wrong Lens
If your rental’s rent covers its own payment, reading your personal income may be unnecessary. A DSCR loan is reviewed primarily on property-level rental income covering the payment, subject to lender guidelines.
DSCR loans are designed for non-owner-occupied investment properties. Because they are business-purpose investor loans, they are reviewed differently from a standard owner-occupied mortgage.
| Factor | Bank statement HELOC | DSCR loan |
|---|---|---|
| What gets read | Your deposits, after a haircut | The property’s rent vs. payment |
| Existing first mortgage | Stays in place | Replaced if cash-out |
| LLC title | Not allowed | Possible, subject to program terms |
| Personal income figure | Calculated | Not the focus |
On the DSCR side, 1.00 is where many select programs start. A separate select-lender path takes coverage below 1.00, with leverage and terms adjusted. Cash-out on standard rentals tops out around 75% LTV across most of the network, and about six months of seasoning is the common expectation. Most programs want a score near 660, and 700 and above unlocks the strongest leverage tiers.
Clearing 1.00 does not mean positive cash flow. Repairs, vacancy, management, and capital costs sit outside the calculation. DSCR tells a lender whether rent covers the payment, not whether you profit.
For a broader view, see the complete DSCR loans guide. For a related angle, Lendmire’s piece How a Self-Employed Landlord Gets a Bank Statement HELOC on a Rental walks through the application itself.
A rough decision rule helps. If your deposits are strong, your books are clean, and the property is held individually or in a trust, the HELOC keeps your existing first mortgage intact. If your deposits look thin, your rentals sit in an LLC, or your traditional personal-income documentation tells a different story than your accounts, DSCR often fits better.
Market context supports both paths. HousingWire’s guide reports bank statement loans at about 34% of non-QM volume and DSCR or investor loans at about 29%. Both are mainstream products, not fringe ones.
Non-QM does not mean skipping verification. A bank statement HELOC is reviewed on documented income under the applicable program, subject to lender guidelines. The lender still has to assess whether you can repay.
Tax treatment can depend on how the funds are used and how the property is held; investors should keep clear records and speak with a qualified tax professional before relying on any deduction.
Frequently Asked Questions
Is the 50% expense ratio fixed?
No. It is a common default and a common example, not a regulation. A documented lower ratio from a licensed tax preparer or a third-party P&L may be accepted, depending on the lender. Programs that hold to a flat 50% tend to be priced differently, so compare the full terms.
How do lenders treat rent deposits?
It varies. Rent deposited into a business or LLC account may be treated like business revenue, so an expense ratio can apply. Rent in a personal account may be read differently. Ask the lender how it classifies rent before choosing which statements to submit.
Does a lower expense ratio raise my loan size?
Not directly. It raises qualifying income, which helps DTI. The investment line still caps at 70% CLTV and $500,000, and the DTI is tested on the full line payment at maximum draw.
Can I use statements from an account that mixes personal and rental money?
Often not. Many lenders decline commingled accounts, though some accept them with explanation. Separating rental income into its own account for several months before you apply gives the cleanest file.
Is a bank statement HELOC no-documentation?
No. It is reviewed on documented income under the applicable program, subject to lender guidelines. You still provide statements, identify the account, document any lower ratio, and meet credit, equity, and title requirements.
Next Step
If you are considering a home equity line and want to see how the numbers work, Lendmire can help you compare HELOC options based on the property, the equity available, credit profile, combined leverage, and your goals. If you hold a rental in your own name and want to see how a self-employed owner can use a line to retire debt, Lendmire’s piece How a Self-Employed Owner Pays Off Debt With a Bank Statement HELOC is a useful next read.
For a self-employed landlord, the expense ratio is only one lever; the cleanest account, the clearest paperwork, and the right loan type usually matter more than the number itself.
About Lendmire
As a mortgage broker (NMLS# 2371349), Lendmire helps homeowners and real estate investors in its 16 full-service states open home equity lines of credit arranged through wholesale lenders. Lendmire is never the lender; line amounts, ceilings and terms are set by the lender under its guidelines. Scotsman Guide named Lendmire a Top Mortgage Workplace in both 2025 and 2026.
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References
1. HousingWire, plain-English non-QM loans guide
2. Scotsman Guide, “Rev Up the Engine for Non-QM Lending”
3. Federal Register, Ability-to-Repay and Qualified Mortgage Standards Rule
This article is part of Lendmire’s bank statement HELOC program — full qualification details, guidelines, and scenarios live on the program page.
Related reading: Bank Statement HELOC Rules Texas Homeowners Face on Occupancy · Can a Self-Employed Landlord Get a Bank Statement HELOC in Texas? · Should a Self-Employed Investor Use a Home HELOC for Rentals?
Brandon Miller
Founder & CEO, Mortgage Loan Originator, Lendmire LLC
- Mortgage Loan Originator · NMLS# 1129696 · Verify on NMLS Consumer Access
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- Lendmire LLC · Firm NMLS# 2371349 · Verify firm licensure
Disclosure information. Lendmire is a state-licensed mortgage brokerage under NMLS# 2371349. Lendmire is not a depository institution, direct lender, or financial advisor — all loans referenced are placed through wholesale lender partners and are subject to each lender's underwriting standards. This article is provided for general informational purposes and is not a commitment to lend, nor does it constitute financial, legal, or tax advice. Loan programs, terms, rates, and qualification standards change without notice and depend on borrower profile, property type, and the state in which the subject property is located. Equal Housing Opportunity provider. NMLS Consumer Access: nmlsconsumeraccess.org.